1/* SPDX-License-Identifier: GPL-2.0 */ 2/* Copyright 2019 Collabora ltd. */ 3 4#ifndef __PANFROST_DEVFREQ_H__ 5#define __PANFROST_DEVFREQ_H__ 6 7#include <linux/spinlock.h> 8#include <linux/ktime.h> 9 10struct devfreq; 11struct opp_table; 12struct thermal_cooling_device; 13 14struct panfrost_device; 15 16struct panfrost_devfreq { 17 struct devfreq *devfreq; 18 struct opp_table *regulators_opp_table; 19 struct thermal_cooling_device *cooling; 20 bool opp_of_table_added; 21 22 ktime_t busy_time; 23 ktime_t idle_time; 24 ktime_t time_last_update; 25 int busy_count; 26 /* 27 * Protect busy_time, idle_time, time_last_update and busy_count 28 * because these can be updated concurrently between multiple jobs. 29 */ 30 spinlock_t lock; 31}; 32 33int panfrost_devfreq_init(struct panfrost_device *pfdev); 34void panfrost_devfreq_fini(struct panfrost_device *pfdev); 35 36void panfrost_devfreq_resume(struct panfrost_device *pfdev); 37void panfrost_devfreq_suspend(struct panfrost_device *pfdev); 38 39void panfrost_devfreq_record_busy(struct panfrost_devfreq *devfreq); 40void panfrost_devfreq_record_idle(struct panfrost_devfreq *devfreq); 41 42#endif /* __PANFROST_DEVFREQ_H__ */ 43